Create indexes on some Vandelay tables to speed up retrieval and delete operations

git-svn-id: svn://svn.open-ils.org/ILS/trunk@17236 dcc99617-32d9-48b4-a31d-7c20da2025e4

diff --git a/Open-ILS/src/sql/Pg/002.schema.config.sql b/Open-ILS/src/sql/Pg/002.schema.config.sql
index 3106a8e..66c947c 100644 (file)
--- a/Open-ILS/src/sql/Pg/002.schema.config.sql
+++ b/Open-ILS/src/sql/Pg/002.schema.config.sql
@@ -68,7 +68,7 @@ CREATE TABLE config.upgrade_log (
     install_date    TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
 );
 
-INSERT INTO config.upgrade_log (version) VALUES ('0373'); -- phasefx
+INSERT INTO config.upgrade_log (version) VALUES ('0374'); -- dbs
 
 CREATE TABLE config.bib_source (
        id              SERIAL  PRIMARY KEY,

diff --git a/Open-ILS/src/sql/Pg/012.schema.vandelay.sql b/Open-ILS/src/sql/Pg/012.schema.vandelay.sql
index 5a8af42..41372e2 100644 (file)
--- a/Open-ILS/src/sql/Pg/012.schema.vandelay.sql
+++ b/Open-ILS/src/sql/Pg/012.schema.vandelay.sql
@@ -80,6 +80,7 @@ CREATE TABLE vandelay.queued_bib_record (
        imported_as     INT             REFERENCES biblio.record_entry (id) DEFERRABLE INITIALLY DEFERRED
 ) INHERITS (vandelay.queued_record);
 ALTER TABLE vandelay.queued_bib_record ADD PRIMARY KEY (id);
+CREATE INDEX queued_bib_record_queue_idx ON vandelay.queued_bib_record (queue);
 
 CREATE TABLE vandelay.queued_bib_record_attr (
        id                      BIGSERIAL       PRIMARY KEY,
@@ -87,6 +88,7 @@ CREATE TABLE vandelay.queued_bib_record_attr (
        field           INT                     NOT NULL REFERENCES vandelay.bib_attr_definition (id) DEFERRABLE INITIALLY DEFERRED,
        attr_value      TEXT            NOT NULL
 );
+CREATE INDEX queued_bib_record_attr_record_idx ON vandelay.queued_bib_record_attr (record);
 
 CREATE TABLE vandelay.bib_match (
        id                              BIGSERIAL       PRIMARY KEY,
@@ -1181,6 +1183,7 @@ CREATE TABLE vandelay.queued_authority_record (
        imported_as     INT     REFERENCES authority.record_entry (id) DEFERRABLE INITIALLY DEFERRED
 ) INHERITS (vandelay.queued_record);
 ALTER TABLE vandelay.queued_authority_record ADD PRIMARY KEY (id);
+CREATE INDEX queued_authority_record_queue_idx ON vandelay.queued_authority_record (queue);
 
 CREATE TABLE vandelay.queued_authority_record_attr (
        id                      BIGSERIAL       PRIMARY KEY,
@@ -1188,6 +1191,7 @@ CREATE TABLE vandelay.queued_authority_record_attr (
        field           INT                     NOT NULL REFERENCES vandelay.authority_attr_definition (id) DEFERRABLE INITIALLY DEFERRED,
        attr_value      TEXT            NOT NULL
 );
+CREATE INDEX queued_authority_record_attr_record_idx ON vandelay.queued_authority_record_attr (record);
 
 CREATE TABLE vandelay.authority_match (
        id                              BIGSERIAL       PRIMARY KEY,

diff --git a/Open-ILS/src/sql/Pg/upgrade/0374.schema.vandelay_indices.sql b/Open-ILS/src/sql/Pg/upgrade/0374.schema.vandelay_indices.sql
new file mode 100644 (file)
index 0000000..0665ffe
--- /dev/null
+++ b/Open-ILS/src/sql/Pg/upgrade/0374.schema.vandelay_indices.sql
@@ -0,0 +1,14 @@
+-- No transaction is required
+INSERT INTO config.upgrade_log (version) VALUES ('0374'); -- dbs
+
+-- Triggers on the vandelay.queued_*_record tables delete entries from
+-- the associated vandelay.queued_*_record_attr tables based on the record's
+-- ID; create an index on that column to avoid sequential scans for each
+-- queued record that is deleted
+CREATE INDEX queued_bib_record_attr_record_idx ON vandelay.queued_bib_record_attr (record);
+CREATE INDEX queued_authority_record_attr_record_idx ON vandelay.queued_authority_record_attr (record);
+
+-- Avoid sequential scans for queue retrieval operations by providing an
+-- index on the queue column
+CREATE INDEX queued_bib_record_queue_idx ON vandelay.queued_bib_record (queue);
+CREATE INDEX queued_authority_record_queue_idx ON vandelay.queued_authority_record (queue);